mkfx.xfs -L book -d agcount=16 -i size=512 -l size=1024m,lazy-count=1,sectsize=4096 -b size=4096 /dev/sdd

sudo mount -v -o rw,noatime,nodiratime,noikeep,nobarrier,allocsize=512M,noikeep,attr2,largeio,inode64,swalloc /dev/sdc1 ~/book

-o can contain blew options:
nobarrier:有电池时使用它可以提高性能
noikeep:挂载的是机械磁盘
nouuid
